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AMS 5643, AMS 5604, AMS 5622, 17-4PH STAINLESS STEEL

17-4PH STAINLESS STEEL - AMS5643

The 17/4PH is an austenitic stainless steel alloy that has superior resistance to corrosion and outstanding mechanical properties. Conforming to the stringent AMS 5604, AMS 5622, and AMS 5643 specifications, this alloy is meticulously engineered to meet the most demanding industrial requirements.

The exceptional corrosion resistance of the 17/4PH alloy stems from its carefully crafted chemical composition, blending chromium, nickel, and copper in precise proportions, this unique formulation imbues the material with an unrivaled ability to withstand a broad spectrum of corrosive environments.

Moreover, the alloy's precipitation hardening capabilities allow for precise control over its mechanical properties, through a carefully controlled heat treatment process, 17/4PH can achieve remarkable strength and hardness levels while maintaining excellent toughness and ductility.

The remarkable combination of high strength and lightweight characteristics makes the 17/4PH alloy exceptionally well-suited for applications where optimal strength-to-weight ratios are paramount. From aerospace components that demand superior performance without compromising on weight, to oil and gas equipment subjected to harsh environments, and intricately designed precision engineering parts requiring meticulous craftsmanship, this versatile material excels across a wide range of demanding applications.

Specific Gravity

7.74 g/cm3

Typical Applications

Related Specifications

Motor Shafts

 

Aircraft Structural Parts

Valve Stems

Gears

AMS 5604

 

AMS 5622

AMS 5643

UNS S17400

W.Nr 1.4548

Chemical Composition (Wt %)

  C Si Mn P S Cr Mo Ni Cb Cu Fe
Min 15.00 3.00 5 x %C 3.00 Bal
Max 0.07 1.00 1.00 0.040 0.030 17.50 0.50 5.00 0.45 5.00

Typical Mechanical Properties (AMS5643)

  0.2% Proof Stress Tensile Strength Elongation Reduction of area Hardness
  MPA MPA % % HB
  Min Min Min Min Min Max
      L L  
H900 1172 1310 10 40 388 444
H925 1069 1172 10 44 375 429
H1025 1000 1069 12 45 331 401
H1075 862 1000 13 45 311 375
H1100 793 965 14 45 302 363
H1150 724 931 16 50 277 352

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